Ejemplo n.º 1
0
int ar7240_platform_init(void)
{
	int ret;
	/* need to set clock appropriately */
#ifdef CONFIG_WASP_SUPPORT
	ar7240_uart_data[0].uartclk = ath_ref_clk_freq;
#else
	ar7240_uart_data[0].uartclk = ar7240_ahb_freq;
#endif
#if 1
	ret = platform_add_devices(ar724x_platform_devices,
				ARRAY_SIZE(ar724x_platform_devices));
        printk("===== ar7240_platform_init: %d\n", ret);
	if (ret < 0)
		return ret;
#endif
	if (is_ar7241() || is_ar7242() || is_ar933x() || is_wasp()) {
		return (platform_add_devices(ar7241_platform_devices,
				ARRAY_SIZE(ar7241_platform_devices)));
	}
	if (is_ar7240()) {
		return (platform_add_devices(ar7240_platform_devices,
				ARRAY_SIZE(ar7240_platform_devices)));
	}

	return 0;
}
Ejemplo n.º 2
0
/*
 * For every command we re-setup the ring and start with clean h/w rx state
 */
static int ag7240_clean_rx(struct eth_device *dev, bd_t * bd) {

	int i;
	ag7240_desc_t *fr;
	ag7240_mac_t *mac = (ag7240_mac_t*)dev->priv;

	if (!ag7240_check_link(mac)){
		return 0;
	}

	mac->next_rx = 0;

	for (i = 0; i < NO_OF_RX_FIFOS; i++) {
		fr = mac->fifo_rx[i];
		fr->pkt_start_addr = virt_to_phys(NetRxPackets[i]);
		flush_cache((u32) NetRxPackets[i], PKTSIZE_ALIGN);
		ag7240_rx_give_to_dma(fr);
	}

	ag7240_reg_wr(mac, AG7240_DMA_RX_DESC, virt_to_phys(mac->fifo_rx[0]));
	ag7240_reg_wr(mac, AG7240_DMA_RX_CTRL, AG7240_RXE);
	/* rx start */

	if (!is_ar933x()){
		// TODO: do we need this?
		udelay(1000 * 1000);
	}

	return 1;

}
Ejemplo n.º 3
0
Archivo: ag934x.c Proyecto: jhbsz/102
static void ag7240_get_ethaddr(struct eth_device *dev)
{
    unsigned char *eeprom;
    unsigned char *mac = dev->enetaddr;
#ifndef CONFIG_AR7240_EMU

#ifdef CONFIG_ATH_NAND_BR
    unsigned char sectorBuff[ATH_ETH_MAC_READ_SIZE];

    eeprom = ath_eth_mac_addr(sectorBuff);
    if(eeprom == NULL) {
        /* mac address will be set to default mac address */
        mac[0] = 0xff;
    }
    else {
#else  /* CONFIG_ATH_NAND_BR */
    eeprom = ag7240_mac_addr_loc();
#endif  /* CONFIG_ATH_NAND_BR */

        if (strcmp(dev->name, "eth0") == 0) {
            memcpy(mac, eeprom, 6);
        } else if (strcmp(dev->name, "eth1") == 0) {
            eeprom += 6;
            memcpy(mac, eeprom, 6);
        } else {
            printf("%s: unknown ethernet device %s\n", __func__, dev->name);
            return;
        }
#ifdef CONFIG_ATH_NAND_BR
    }
#endif  /* CONFIG_ATH_NAND_BR */
    /* Use fixed address if the above address is invalid */
    if (mac[0] != 0x00 || (mac[0] == 0xff && mac[5] == 0xff)) {
#else
    if (1) {
#endif
        mac[0] = 0x00;
        mac[1] = 0x03;
        mac[2] = 0x7f;
        mac[3] = 0x09;
        mac[4] = 0x0b;
        mac[5] = 0xad;
        printf("No valid address in Flash. Using fixed address\n");
    } else {
        printf("Fetching MAC Address from 0x%p\n", __func__, eeprom);
    }
}


int ag7240_enet_initialize(bd_t * bis)
{
    struct eth_device *dev[CFG_AG7240_NMACS];
    u32 mask, mac_h, mac_l;
    int i;

    printf("ag934x_enet_initialize...\n");

    if(is_ar933x() && (ar7240_reg_rd(AR7240_RESET)!=0))
        ar7240_reg_wr(AR7240_RESET,0);

    if(is_ar933x())  //Turn on LED
        ar7240_reg_wr(AR7240_GPIO_BASE + 0x28 , ar7240_reg_rd(AR7240_GPIO_BASE + 0x28)  | (0xF8));

    for (i = 0; i < CFG_AG7240_NMACS; i++) {

        if ((dev[i] = (struct eth_device *) malloc(sizeof (struct eth_device))) == NULL) {
            puts("malloc failed\n");
            return 0;
        }

        if ((ag7240_macs[i] = (ag7240_mac_t *) malloc(sizeof (ag7240_mac_t))) == NULL) {
            puts("malloc failed\n");
            return 0;
        }

        memset(ag7240_macs[i], 0, sizeof(ag7240_macs[i]));
        memset(dev[i], 0, sizeof(dev[i]));

        sprintf(dev[i]->name, "eth%d", i);
        ag7240_get_ethaddr(dev[i]);

        ag7240_macs[i]->mac_unit = i;
        ag7240_macs[i]->mac_base = i ? AR7240_GE1_BASE : AR7240_GE0_BASE ;
        ag7240_macs[i]->dev = dev[i];

        dev[i]->iobase = 0;
        dev[i]->init = ag7240_clean_rx;
        dev[i]->halt = ag7240_halt;
        dev[i]->send = ag7240_send;
        dev[i]->recv = ag7240_recv;
        dev[i]->priv = (void *)ag7240_macs[i];
    }
#if !defined(CONFIG_ATH_NAND_BR)
    mask = AR7240_RESET_GE1_PHY;
    ar7240_reg_rmw_set(AR7240_RESET, mask);
    udelay(1000 * 100);
    ar7240_reg_rmw_clear(AR7240_RESET, mask);
    udelay(100);
#endif
    mask = AR7240_RESET_GE0_PHY;
    ar7240_reg_rmw_set(AR7240_RESET, mask);
    udelay(1000 * 100);
    ar7240_reg_rmw_clear(AR7240_RESET, mask);
    udelay(100);


    for (i = 0; i < CFG_AG7240_NMACS; i++) {
        eth_register(dev[i]);
#if(CONFIG_COMMANDS & CFG_CMD_MII)
        miiphy_register(dev[i]->name, ag7240_miiphy_read, ag7240_miiphy_write);
#endif

        ag7240_reg_rmw_set(ag7240_macs[i], AG7240_MAC_CFG1, AG7240_MAC_CFG1_SOFT_RST
                           | AG7240_MAC_CFG1_RX_RST | AG7240_MAC_CFG1_TX_RST);

        if(!i) {
            mask = (AR7240_RESET_GE0_MAC  | AR7240_RESET_GE1_MAC);

            if (is_ar7241() || is_ar7242() ||  is_wasp())
                mask = mask | AR7240_RESET_GE0_MDIO | AR7240_RESET_GE1_MDIO;

            printf(" wasp  reset mask:%x \n",mask);

            ar7240_reg_rmw_set(AR7240_RESET, mask);
            udelay(1000 * 100);

            ar7240_reg_rmw_clear(AR7240_RESET, mask);
            udelay(1000 * 100);

            udelay(10 * 1000);
        }

        ag7240_mii_setup(ag7240_macs[i]);

        /* if using header for register configuration, we have to     */
        /* configure s26 register after frame transmission is enabled */

        if (ag7240_macs[i]->mac_unit == 0) { /* WAN Phy */
#ifdef CONFIG_AR7242_S16_PHY
            if (is_ar7242() || is_wasp()) {
                athrs16_reg_init();
            } else
#endif
            {
#ifdef  CONFIG_ATHRS17_PHY
                athrs17_reg_init();
#endif

#ifdef CFG_ATHRS26_PHY
                athrs26_reg_init();
#endif
#ifdef CFG_ATHRS27_PHY
                printf("s27 reg init \n");
                athrs27_reg_init();
#endif
#ifdef CONFIG_F1E_PHY
                printf("F1Phy reg init \n");
                athr_reg_init();
#endif
#ifdef CONFIG_VIR_PHY
                printf("VIRPhy reg init \n");
                athr_vir_reg_init();
#endif
#ifdef CONFIG_F2E_PHY
                printf("F2Phy reg init \n");
                athr_reg_init();
#endif

            }
        } else {
#ifdef CFG_ATHRS26_PHY
            athrs26_reg_init_lan();
#endif
#ifdef CFG_ATHRS27_PHY
            printf("s27 reg init lan \n");
            athrs27_reg_init_lan();
#endif
        }
        ag7240_hw_start(ag7240_macs[i]);
        ag7240_setup_fifos(ag7240_macs[i]);

        udelay(100 * 1000);

        {
            unsigned char *mac = dev[i]->enetaddr;

            printf("%s: %02x:%02x:%02x:%02x:%02x:%02x\n", dev[i]->name,
                   mac[0] & 0xff, mac[1] & 0xff, mac[2] & 0xff,
                   mac[3] & 0xff, mac[4] & 0xff, mac[5] & 0xff);
        }
        mac_l = (dev[i]->enetaddr[4] << 8) | (dev[i]->enetaddr[5]);
        mac_h = (dev[i]->enetaddr[0] << 24) | (dev[i]->enetaddr[1] << 16) |
                (dev[i]->enetaddr[2] << 8) | (dev[i]->enetaddr[3] << 0);

        ag7240_reg_wr(ag7240_macs[i], AG7240_GE_MAC_ADDR1, mac_l);
        ag7240_reg_wr(ag7240_macs[i], AG7240_GE_MAC_ADDR2, mac_h);


        ag7240_phy_setup(ag7240_macs[i]->mac_unit);
        printf("%s up\n",dev[i]->name);
    }

    return 1;
}

#if (CONFIG_COMMANDS & CFG_CMD_MII)
int
ag7240_miiphy_read(char *devname, uint32_t phy_addr, uint8_t reg, uint16_t *data)
{
    ag7240_mac_t *mac   = ag7240_name2mac(devname);
    uint16_t      addr  = (phy_addr << AG7240_ADDR_SHIFT) | reg, val;
    volatile int           rddata;
    uint16_t      ii = 0xFFFF;


    /*
     * Check for previous transactions are complete. Added to avoid
     * race condition while running at higher frequencies.
     */
    do
    {
        udelay(5);
        rddata = ag7240_reg_rd(mac, AG7240_MII_MGMT_IND) & 0x1;
    } while(rddata && --ii);

    if (ii == 0)
        printf("ERROR:%s:%d transaction failed\n",__func__,__LINE__);


    ag7240_reg_wr(mac, AG7240_MII_MGMT_CMD, 0x0);
    ag7240_reg_wr(mac, AG7240_MII_MGMT_ADDRESS, addr);
    ag7240_reg_wr(mac, AG7240_MII_MGMT_CMD, AG7240_MGMT_CMD_READ);

    do
    {
        udelay(5);
        rddata = ag7240_reg_rd(mac, AG7240_MII_MGMT_IND) & 0x1;
    } while(rddata && --ii);

    if(ii==0)
        printf("Error!!! Leave ag7240_miiphy_read without polling correct status!\n");

    val = ag7240_reg_rd(mac, AG7240_MII_MGMT_STATUS);
    ag7240_reg_wr(mac, AG7240_MII_MGMT_CMD, 0x0);

    if(data != NULL)
        *data = val;

    return val;
}
Ejemplo n.º 4
0
Archivo: ag934x.c Proyecto: jhbsz/102
void ag7240_mii_setup(ag7240_mac_t *mac)
{
    u32 mgmt_cfg_val;
    u32 cpu_freq,ddr_freq,ahb_freq;
    u32 check_cnt,revid_val;

    if ((ar7240_reg_rd(WASP_BOOTSTRAP_REG) & WASP_REF_CLK_25) == 0) {
#ifndef CFG_DUAL_PHY_SUPPORT
        ar7240_reg_wr(AR934X_SWITCH_CLOCK_SPARE, 0x271);
#endif
    } else {
        ar7240_reg_wr(AR934X_SWITCH_CLOCK_SPARE, 0x570);
    }

#if defined(CONFIG_AR7242_S16_PHY) || defined(CONFIG_ATHRS17_PHY)
    if (is_wasp() && mac->mac_unit == 0) {
#ifdef CONFIG_AR7242_S16_PHY
        printf("WASP  ----> S16 PHY *\n");
#else
        printf("WASP  ----> S17 PHY *\n");
#endif
        mgmt_cfg_val = 4;
        if(mac->mac_unit == 0)
            ar7240_reg_wr(AG7240_ETH_CFG, AG7240_ETH_CFG_RGMII_GE0);

        udelay(1000);

        ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
        ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);

        return;
    }
#endif

#ifdef CFG_ATHRS27_PHY
    if (is_wasp()) {
        printf("WASP ----> S27 PHY \n");
        mgmt_cfg_val = 2;
        ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
        ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
        return;
    }
#endif

#ifdef CONFIG_F2E_PHY
    if (is_wasp()) {
        printf("WASP  ----> F2 PHY *\n");
        ar7240_reg_wr(AG7240_ETH_CFG, (AG7240_ETH_CFG_RMII_MASTER_MODE | AG7240_ETH_CFG_RMII_GE0
                                       | AG7240_ETH_CFG_RMII_HISPD_GE0));

        mgmt_cfg_val = 6;

        ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
        ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);

        return;
    }
#endif


#if defined(CONFIG_F1E_PHY) || defined(CONFIG_VIR_PHY)
    if (is_wasp()) {
#ifdef CONFIG_VIR_PHY
        printf("WASP  ----> VIR PHY *\n");
#else
        printf("WASP  ----> F1 PHY *\n");
#endif
        if(mac->mac_unit == 0)
            ar7240_reg_wr(AG7240_ETH_CFG, AG7240_ETH_CFG_RGMII_GE0);

        mgmt_cfg_val = 6;

        ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
        ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);

        return;
    }
#endif

    if ((ar7240_reg_rd(AR7240_REV_ID) & AR7240_REV_ID_MASK) == AR7240_REV_1_2) {
        mgmt_cfg_val = 0x2;
        if (mac->mac_unit == 0) {
            ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
            ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
        }
    }
    else {
        ar7240_sys_frequency(&cpu_freq, &ddr_freq, &ahb_freq);
        switch (ahb_freq/1000000) {
        case 150:
            mgmt_cfg_val = 0x7;
            break;
        case 175:
            mgmt_cfg_val = 0x5;
            break;
        case 200:
            mgmt_cfg_val = 0x4;
            break;
        case 210:
            mgmt_cfg_val = 0x9;
            break;
        case 220:
            mgmt_cfg_val = 0x9;
            break;
        default:
            mgmt_cfg_val = 0x7;
        }
        if ((is_ar7241() || is_ar7242())) {

            /* External MII mode */
            if (mac->mac_unit == 0 && is_ar7242()) {
                mgmt_cfg_val = 0x6;
                ar7240_reg_rmw_set(AG7240_ETH_CFG, AG7240_ETH_CFG_RGMII_GE0);
                ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
                ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
            }
            /* Virian */
            mgmt_cfg_val = 0x4;
            ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
            ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
            printf("Virian MDC CFG Value ==> %x\n",mgmt_cfg_val);

        }
        else if(is_ar933x()) {
            //GE0 receives Rx/Tx clock, and use S26 phy
            ar7240_reg_rmw_set(AG7240_ETH_CFG, AG7240_ETH_CFG_MII_GE0_SLAVE);
            mgmt_cfg_val = 0xF;
            if (mac->mac_unit == 1) {
                check_cnt = 0;
                while (check_cnt++ < 10) {
                    ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
                    ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
#ifdef CFG_ATHRS26_PHY
                    if(athrs26_mdc_check() == 0)
                        break;
#endif
                }
                if(check_cnt == 11)
                    printf("%s: MDC check failed\n", __func__);
            }
        }
        else { /* Python 1.0 & 1.1 */
            if (mac->mac_unit == 0) {
                check_cnt = 0;
                while (check_cnt++ < 10) {
                    ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
                    ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
#ifdef CFG_ATHRS26_PHY
                    if(athrs26_mdc_check() == 0)
                        break;
#endif
                }
                if(check_cnt == 11)
                    printf("%s: MDC check failed\n", __func__);
            }
        }

    }
}
Ejemplo n.º 5
0
int ag7240_enet_initialize(bd_t * bis) {
	struct eth_device *dev[CFG_AG7240_NMACS];
	u32 mask, mac_h, mac_l;
	int i;

#ifdef AG7240_DEBUG
	printf("ag7240_enet_initialize...\n");
#endif

	// TODO check this register!
	ar7240_reg_wr(HORNET_BOOTSTRAP_STATUS, ar7240_reg_rd(HORNET_BOOTSTRAP_STATUS) & ~HORNET_BOOTSTRAP_MDIO_SLAVE_MASK);

	if (is_ar933x()) {
		u32 rd = 0x0;

		/* 
		 * To get s26 out of reset, we have to...
		 * bit0~bit3: has to be deasserted
		 * bit4:      has to be asserted
		 */
		rd = ar7240_reg_rd(AR7240_S26_CLK_CTRL_OFFSET) & ~(0x1f);
		rd |= 0x10;
		ar7240_reg_wr(AR7240_S26_CLK_CTRL_OFFSET, rd);

		if (ar7240_reg_rd(AR7240_RESET) != 0) {
			ar7240_reg_wr(AR7240_RESET, 0);
		}
	}

	for (i = 0; i < CFG_AG7240_NMACS; i++) {

		if ((dev[i] = (struct eth_device *) malloc(sizeof(struct eth_device))) == NULL) {
			puts("## Error: malloc failed\n");
			return 0;
		}

		if ((ag7240_macs[i] = (ag7240_mac_t *) malloc(sizeof(ag7240_mac_t))) == NULL) {
			puts("## Error: malloc failed\n");
			return 0;
		}

		memset(ag7240_macs[i], 0, sizeof(ag7240_macs[i]));
		memset(dev[i], 0, sizeof(dev[i]));

		sprintf(dev[i]->name, "eth%d", i);
		ag7240_get_ethaddr(dev[i]);

		ag7240_macs[i]->mac_unit = i;
		ag7240_macs[i]->mac_base = i ? AR7240_GE1_BASE : AR7240_GE0_BASE;
		ag7240_macs[i]->dev = dev[i];

		dev[i]->iobase = 0;
		dev[i]->init = ag7240_clean_rx;
		dev[i]->halt = ag7240_halt;
		dev[i]->send = ag7240_send;
		dev[i]->recv = ag7240_recv;
		dev[i]->priv = (void *) ag7240_macs[i];
	}

	for (i = 0; i < CFG_AG7240_NMACS; i++) {

		eth_register(dev[i]);

#if(CONFIG_COMMANDS & CFG_CMD_MII)
		miiphy_register(dev[i]->name, ag7240_miiphy_read, ag7240_miiphy_write);
#endif

		ag7240_reg_rmw_set(ag7240_macs[i], AG7240_MAC_CFG1, AG7240_MAC_CFG1_SOFT_RST | AG7240_MAC_CFG1_RX_RST | AG7240_MAC_CFG1_TX_RST);

		if (!i) {
			mask = (AR7240_RESET_GE0_MAC | AR7240_RESET_GE0_PHY | AR7240_RESET_GE1_MAC | AR7240_RESET_GE1_PHY);

			if (is_ar7241() || is_ar7242() || is_wasp()){
				mask = mask | AR7240_RESET_GE0_MDIO | AR7240_RESET_GE1_MDIO;
			}

			ar7240_reg_rmw_set(AR7240_RESET, mask);

			if (!is_ar933x()){
				udelay(1000 * 100);
			}

			ar7240_reg_rmw_clear(AR7240_RESET, mask);

			if (!is_ar933x()){
				udelay(1000 * 100);
			}

			if (!is_ar933x()){
				udelay(10 * 1000);
			}
		}

		ag7240_hw_start(ag7240_macs[i]);

		ag7240_setup_fifos(ag7240_macs[i]);

		if (!is_ar933x()){
			udelay(100 * 1000);
		}

#ifdef AG7240_DEBUG
		unsigned char *mac = dev[i]->enetaddr;
		printf("\nInterface %s MAC address: %02X:%02X:%02X:%02X:%02X:%02X\n", dev[i]->name, mac[0] & 0xff, mac[1] & 0xff, mac[2] & 0xff, mac[3] & 0xff, mac[4] & 0xff, mac[5] & 0xff);
#endif

		mac_l = (dev[i]->enetaddr[4] << 8) | (dev[i]->enetaddr[5]);
		mac_h = (dev[i]->enetaddr[0] << 24) | (dev[i]->enetaddr[1] << 16) | (dev[i]->enetaddr[2] << 8) | (dev[i]->enetaddr[3] << 0);

		ag7240_reg_wr(ag7240_macs[i], AG7240_GE_MAC_ADDR1, mac_l);
		ag7240_reg_wr(ag7240_macs[i], AG7240_GE_MAC_ADDR2, mac_h);

		/* if using header for register configuration, we have to     */
		/* configure s26 register after frame transmission is enabled */

		if (ag7240_macs[i]->mac_unit == 0) { /* WAN Phy */
#ifdef CONFIG_AR7242_S16_PHY
			if (is_ar7242() || is_wasp()) {
				athrs16_reg_init();
			} else
#endif
			{
#ifdef CFG_ATHRS26_PHY
	#ifdef AG7240_DEBUG
				printf("s26 reg init \n");
	#endif
				athrs26_reg_init();
#endif
#ifdef CFG_ATHRS27_PHY
	#ifdef AG7240_DEBUG
				printf("s27 reg init \n");
	#endif
				athrs27_reg_init();
#endif
#ifdef CONFIG_F1E_PHY
	#ifdef AG7240_DEBUG
				printf("F1Phy reg init \n");
	#endif
				athr_reg_init();
#endif
			}
		} else {
#ifdef CFG_ATHRS26_PHY
	#ifdef AG7240_DEBUG
			printf("athrs26_reg_init_lan\n");
	#endif
			athrs26_reg_init_lan();
#endif
#ifdef CFG_ATHRS27_PHY
	#ifdef AG7240_DEBUG
			printf("s27 reg init lan \n");
	#endif
			athrs27_reg_init_lan();
#endif
		}

#ifdef AG7240_DEBUG
		printf("ag7240_phy_setup\n");
#endif
		//udelay(100*1000);

		ag7240_phy_setup(ag7240_macs[i]->mac_unit);

#ifdef AG7240_DEBUG
		printf("Interface %s is up\n", dev[i]->name);
#endif
	}

	return 1;
}
Ejemplo n.º 6
0
/*
 * Called in ag7240_hw_start() function
 * */
void ag7240_mii_setup(ag7240_mac_t *mac) {
	u32 mgmt_cfg_val;
	u32 cpu_freq, ddr_freq, ahb_freq;
	u32 check_cnt;

#ifdef CFG_ATHRS27_PHY
	if (is_wasp()) {
		printf("WASP ----> S27 PHY \n");
		mgmt_cfg_val = 2;
		ar7240_reg_wr(0xb8050024, 0x271); // 25MHz ref clock
		//ar7240_reg_wr(0xb8050024, 0x570);	// 40MHz ref clock
		ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
		ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
		return;
	}
#endif

#ifdef CONFIG_AR7242_S16_PHY
	if (is_wasp()) {
		printf("WASP  ----> S16 PHY *\n");
		mgmt_cfg_val = 4;
		if(mac->mac_unit == 0)
		ar7240_reg_wr(AG7240_ETH_CFG, AG7240_ETH_CFG_RGMII_GE0);

		ar7240_reg_rmw_clear(AG7240_ETH_SWITCH_CLK_SPARE, (1 << 6));
		ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
		ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);

		return;
	}
#endif

#ifdef CONFIG_F1E_PHY
	if (is_wasp()) {
		printf("WASP  ----> F1 PHY *\n");
		mgmt_cfg_val = 6;
		if(mac->mac_unit == 0)
		ar7240_reg_wr(AG7240_ETH_CFG, AG7240_ETH_CFG_RGMII_GE0);

		ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
		ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);

		return;
	}
#endif

	if ((ar7240_reg_rd(AR7240_REV_ID) & AR7240_REV_ID_MASK) == AR7240_REV_1_2) {
		mgmt_cfg_val = 0x2;
		if (mac->mac_unit == 0) {
			ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
			ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
		}
	} else {
		ar933x_sys_frequency(&cpu_freq, &ddr_freq, &ahb_freq);

		switch (ahb_freq / 1000000) {
		case 150:
			mgmt_cfg_val = 0x7;
			break;
		case 175:
			mgmt_cfg_val = 0x5;
			break;
		case 200:
			mgmt_cfg_val = 0x4;
			break;
		case 210:
			mgmt_cfg_val = 0x9;
			break;
		case 220:
			mgmt_cfg_val = 0x9;
			break;
		default:
			mgmt_cfg_val = 0x7;
		}
		if ((is_ar7241() || is_ar7242())) {

			/* External MII mode */
			if (mac->mac_unit == 0 && is_ar7242()) {
				mgmt_cfg_val = 0x6;
				ar7240_reg_rmw_set(AG7240_ETH_CFG, AG7240_ETH_CFG_RGMII_GE0);
				ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
				ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
			}
			/* Virian */
			mgmt_cfg_val = 0x4;
			ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
			ag7240_reg_wr(ag7240_macs[1], AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
			printf("Virian MDC CFG Value ==> %x\n", mgmt_cfg_val);

		} else if (is_ar933x()) {
			//GE0 receives Rx/Tx clock, and use S26 phy
			ar7240_reg_rmw_set(AG7240_ETH_CFG, AG7240_ETH_CFG_MII_GE0_SLAVE);
			mgmt_cfg_val = 0xF;
			if (mac->mac_unit == 1) {
				check_cnt = 0;
				while (check_cnt++ < 10) {
					ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
					ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
#ifdef CFG_ATHRS26_PHY
					if (athrs26_mdc_check() == 0) {
						break;
					}
#endif
				}
				if (check_cnt == 11) {
					printf("%s: MDC check failed\n", __func__);
				}
			}
		} else { /* Python 1.0 & 1.1 */
			if (mac->mac_unit == 0) {
				check_cnt = 0;
				while (check_cnt++ < 10) {
					ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val | (1 << 31));
					ag7240_reg_wr(mac, AG7240_MAC_MII_MGMT_CFG, mgmt_cfg_val);
#ifdef CFG_ATHRS26_PHY
					if (athrs26_mdc_check() == 0) {
						break;
					}
#endif
				}
				if (check_cnt == 11) {
					printf("%s: MDC check failed\n", __func__);
				}
			}
		}

	}
}